Compare 1213 vs 1373
| Property | 1213 | 1373 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12131 | 13731 |
| Prime factorization | 1213 | 1373 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1213 | 1, 1373 |
| Number of properties | 7 | 7 |
| Additive primes | 106th | |
| Cousin primes (1st member) | 45th | |
| Emirps | 52nd | |
| Good primes | 49th | |
| Happy primes | 43rd | |
| Isolated primes | 117th | 129th |
| Left-truncatable primes | 58th | |
| Primes | 198th | 220th |
| Pythagorean primes | 97th | 108th |
| Sexy primes (2nd member) | 96th | |
| Sexy prime triplets (3rd member) | 36th | |
| Roman numberals | MCCXIII | MCCCLXXIII |
| Base 2 | 100101111012 | 101010111012 |
| Base 3 | 11222213 | 12122123 |
| Base 4 | 1023314 | 1111314 |
| Base 5 | 143235 | 204435 |
| Base 6 | 53416 | 102056 |
| Base 7 | 33527 | 40017 |
| Base 8 | 22758 | 25358 |
| Base 9 | 15879 | 17859 |
| Base 10 | 121310 | 137310 |
| Base 11 | a0311 | 103911 |
| Base 12 | 85112 | 96512 |
| Base 13 | 72413 | 81813 |
| Base 14 | 62914 | 70114 |
| Base 15 | 55d15 | 61815 |
| Base 16 | 4bd16 | 55d16 |